'Genealogy Help' does sound clearer.
As to 'WikiTree Help', while the current suggestions are probably less ambiguous, I'll throw out another suggestion - 'Getting Started'. It's common now in other forums and software, easily recognized as the place for basic help, installation help, first steps to usage, and everything to do with getting started with that particular app or topic, but will generally also point to all other reference materials, manuals, guides, and videos. However, 'WikiTree Help' or 'WikiTree How-to' or 'WikiTree Usage' does sound more comprehensive.